During his election campaign, U.S. President-elect Donald Trump said he could "tear up" or renegotiate the deal, which curtailed Iran’s atomic programs in exchange for lifting crippling sanctions.

Trump called the accord "the worst deal ever negotiated," saying it gives away too much to Iran.

Speaking in a television interview on January 15, incoming White House Chief of Staff Reince Priebus said that the nuclear agreement is on life support, but refused to say whether Trump's administration would get rid of the deal.

"I think it’s on life support. I’ll put it that way. But I’m not here to declare one way or another ultimately where this is going to go," Priebus told ABC.

Araghchi reiterated an earlier warning by Iran’s Supreme Leader Ayatollah Ali Khamenei, who said, "If they tear it up, we will burn it."

Araghch said there would be no further discussions with U.S. officials over the deal.

"Our nuclear negotiations with the Americans are finalized and we have no other political talks with them," Araghchi said, adding: "In our view, everything is over."